Caves of Campiglia Marittima
Campiglia Marittima has 20 catalogued caves, including 20 caves. The longest is Buca di Poggio all'Aione (790 m).
20 caves
2.5 km total length
116m max depth
Length adds each cave once (a system counts once), and depth is that of the deepest cave, canyons excluded. Without known lithology: 20.
The 20 longest
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The 20 deepest
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20 of 20